Dump body



Jan. 2, 1934.

T. E. WRIGHT DUMP BODY Filed Sept. 2, 1931 4 Sheets-Sheet 1 T. E. WRIGHT DUMP BODY Jan. 2, 1934.

Filed Sept. 2, 1931 4 Sheets-Sheet 2 T. E. WRIGHT Jan 2, 1934,

DUMP BODY Filed Sept. 2, 1951 4 Sheets-Sheet 3 T. E. WRIGHT Jan. 2, 1934.

DUMP BODY Filed Sept. 1931 4 Sheets-Sheet 4 lllllllllllllm 6142mm a; 9.

F g? w Emu 7 5 111; 3mm

Patented Jan. 2, 1934 1,942,319

UNITED STATES PATENT OFFICE DUMP BODY Thomas Eugene Wright, Jersey City, N. J. Application September 2, 1931. Serial No. 560,849

6 Claims. (01. 298-11) This invention relates to a dump body of that at 10. The front end of this frame is slidably type adaptedto be tilted to different angles to and pivotally engaged by slotted brackets 11 meet the requirements for dumping the load. It extending downwardly from the front end of is more especially an improvement upon the the body 12.

structure covered by my copending application A secondary supporting frame 13 is extended 69 #456,774, filed May 28, 1930. I through frame 9 and pivotally connected thereto One of the objects is to simplify and otherwise between its ends by a transverse pivot rod 14. improve upon the means provided for regulat- The rear end of frame 13 is pivotally connected ing the angle of the body when in dumping poto the rear end portion of the body 12 as shown sition, said means being readily shiftable prior at 15. 65- to the elevation of the body to insure its move- Thrust links 16 connect shaft 5 to the rod 14 ment to desired position. and also extending from shaft 5 are restraining With the foregoing and other objects in view members 17 one of which has been shown in de-, which will appear as the description proceeds, tail in Figure 8. Each restraining member inthe invention resides in the combination and cludes a bar 18 having a longitudinal slot 19 in 79 arrangement of parts and in the details of conthat end portion remote from shaft 5. This bar struction hereinafter described and claimed, it projects between the parallel sides of an elonbeing understood that changes in the precise emgated yoke 20 formed by folding a metal strip. bodiment of the invention herein disclosed may The loop loosely straddles one side of the frame 9 be made within the scope of what is claimed 13 and has notches 21 in its rear edges located 75v without departing from the spirit of the invenwhere they can receive bar 14 when the restraintion. ing member is shifted to one extreme position. In the accompanying drawings the preferred A pivot bolt 22 extends through yoke 20 and slot form of the invention has been shown. 19 and serves to pivotally and slidably connect In said drawings: the parts 18 and 20.

Figure 1 is aside elevation partly broken away, A stud 23 is extended upwardly fromeach showing the body in its lower or normal position. yoke 20 and is secured loosely in one end of a Figure 2 is a similar view showing the body latch rod 24 extending along the top of frame tilted for a low dump. 13. Each rod can be provided with a series of 30 Figure 3 is another view like Figures 1 and 2 notches 25 any one of which is adapted to reshowing the body elevated for a high dump. ceive a lug or keeper 26 extending upwardly from Figure 4isasection on line 4-4, Figure 3. one side of frame 13. The rods are connected Figure 5 is a section on line 55, Figure 3. by a cross rod 27 as shown in Figure 7, but it is Figure 6 is a perspective view of one side of to be understood that, if desired, the rods can be 35 the side beams of the secondary supporting separate from each other'and separately actuframe. ated.

Figure 7 is a perspective view of the latch rods. Normally the body 12 rests on frame 9 and Figure 8 is a perspective View of one of the said frame, in turn rests on beams 3. The secrestraining members. ondary frame 13 is normally positioned between 40 Figure 9 is a detail view of a thrust link. the sides of frame 9 and the restraining member Referring to the figures by characters of refis partly folded. These positions have all been erence, 1 designates a truck chassis supporting a shown in Figure 1. frame 2 having channeled beams 3 which can Should it be desired to make a low dump by be used as a track for rollers 4 at the ends of a lifting the front end only of body 12, the opertransverse shaft 5. A drum 6 operated by any ator would first grasp the rods 24 or rod 27 and suitable means, is supported transversely of the by means thereof pull the restraining members beams 3 and is used for winding and unwinding 1'7 rearwardly along the sides of frame 13 until chains, cables, or other suitable flexible members rod 14 is seated in notches 21. Thus when the 7 each of which is secured at one end to the shaft 5 is drawn toward drum 6 the links 16 will 0 beams 3 as at 8, and at its other end to the drum. thrust upwardly on rod 14 and frame 9 and as These are looped around the shaft and are frame 13 is unrestrained, it will not shift relaadapted to move it when they are wound on the tive to frame 9. Consequently, the body 12 will drum. remain flat on frame 19 and tilt therewith as in The main supporting frame 9 is pivotally an- Figure 2. 55' chored at its rear end to the beams 3, as shown Should a high dump be desired the operator,

2 before raising the parts from the positions shown in Figure 1, shifts the restraining members 17 away from rod 14 until brought to a desired distance from said rod 14. The angle to which the elevated body 12 will be brought will depend upon the distance of the restraining members 1'7 from rod 14. After these members are properly adjusted the rods 24 are placed in engagement with keepers 26. Figure 1.

Following the adjustment described the thrust members or links 16 are actuated to raise the main frame 9. Frames 9 and 13 will move together as the members 1'7 unfold or straighten out. Immediately thereafter these members will hold back on the front portions of frame 13 so that as rod 14 and frame 9 continue to move upwardly, the rear end of frame 13 will also be swung upwardly, thereby lifting the back end of body 12 from frame 9 as in Figure 3. As before stated, the angle of the hoisted body 12 relative to frame 9 will depend upon the distance between members 17 and rod 14.

In every instance the body and other parts can be lowered by gravity to the positions shown in Figure 1 simply by unwinding the connections 7 from drum 6.

What is claimed is:

1. The combination with a truck structure and a body, of crossed pivotally connected main and supplemental supporting frames, a pivotal connection between the main frame and the truck structure, movable connections between said frames and the body, means movably engaging the truck structure for exerting a thrust against said frames at their point of connection to each other thereby to raise the frames and body, a foldable restraining element pivotally connected to the thrust means and slidably connected to the supplemental frame, and means for adjusting said element toward and from the point of connection between the frames prior to the elevation of the frames.

2. The combination with a truck structure and a body, of crossed pivotally connected main and 3. The combination with a truck structure and a normally lowered body, of pivotally connected One such position is shown in.

crossed frames interposed between the structure and body, one of the frames being connected to the structure and body and the other frame being connected to said body and having a free end portion, a thrust means movably supported on the structure and connected to the frames, and foldable restraining means movable with the thrust means and adjustable along said free end portion while the body is lowered.

4. The combination with a truck structure and a body, normally in lowered position, of pivotally connected crossed frames interposed between the structure and the body, one of the frames being connected to the structure and body and the other frame being connected to said body and having a free end portion, a thrust means movable on the structure and connected to the frames, foldable restraining means adjustable relative to the lowered body along said free end portion, and movable with the thrust means, and. means for fastening said restraining means in position coaxial with the pivotal connection of the frames and at predetermined distances therefrom.

5. The combination with a truck structure and a body, of pivotally connected crossed frames interposed between the structure and body, and foldable to position the body in lowered position on the structure, one of the frames being connected to the structure and body and the other frame being connected to said body and having a free end portion, thrust means movable along the structure and connected to the frames, foldable restraining means movable with the thrust means and adjustable along said free end portion, means shiftable relative to the body while the body is in said lowered. position for fastening said restraining means in position coaxial with the pivotal connection of the frames and at predetermined distances therefrom, said means including a latch rod extending from the restraining means, and a keeper on one of the frames adjustably engaged by the rod.

6. The combination with a truck structure and a body normally resting thereon, of crossed .pivotally connected frames between the structure and body, one of the. frames being movably connected to the structure and body and the other frame having one end connected to the body and its other end free, movable thrust means supported on said structure and toactuate the frames at their point of crossing to raise the body, and a foldable restraining element movable with the thrust means, said restraining means being adjustable along said free end portion toward or from the point of crossing of the frames while the body is in normal position.

T. EUGENE WRIGHT. 

